Pine pollen is the pollen of Masson pine, Pinus tabulaeformis or plants of the same genus in the Pinaceae family. When they bloom from January to March, pluck the male cones, dry them in the sun, rub the pollen and remove impurities. Alias: Songhua, Songhuang ("Tang Materia Medica"). Mainly produced in Yunnan, Zhejiang, Jiangsu, Hebei, Liaoning, Jilin, Hubei and other places. It is mainly used to dispel wind and replenish qi, remove dampness and stop bleeding. It can be used to treat dizziness, dizziness, middle-deficiency stomachache, chronic dysentery, sores, and bleeding from wounds. For oral administration: decoction, 1 to 2 qian; soaked in wine or mixed with alcohol. External use: Dry blend or mixed application. Dried pine pollen is a light yellow fine powder. When observed with a magnifying glass, it appears as uniform small round particles. The body is light and easy to fly. It feels smooth when twisted by the hand and does not sink in water. The smell is slightly fragrant and the taste is greasy. The ones that are yellow, fine, free of impurities and have strong fluidity are better.